The TMU will be reset after router exits sleep so in order to re-configure it upon resume make sure the structure is initialized again based on the current hardware state. Signed-off-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx> --- drivers/thunderbolt/switch.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/thunderbolt/switch.c b/drivers/thunderbolt/switch.c index fb30ea1dfc31..de186d6ed166 100644 --- a/drivers/thunderbolt/switch.c +++ b/drivers/thunderbolt/switch.c @@ -2534,6 +2534,10 @@ int tb_switch_resume(struct tb_switch *sw) if (err) return err; + err = tb_switch_tmu_init(sw); + if (err) + return err; + /* check for surviving downstream switches */ tb_switch_for_each_port(sw, port) { if (!tb_port_has_remote(port) && !port->xdomain) -- 2.28.0